<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    {{ stu }}
    <table border="1px">
        <tr>
            <td>name</td>
            <td>age</td>
            <td>gender</td>
        </tr>
        <tr>
            <td>{{ stu["name"] }}</td>
            <td>{{ stu.get("age") }}</td>
            <td>{{ stu.gender }}</td>
        </tr>
    </table>
</body>
</html>